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| 1 | Surrounding rock control mechanism of deep coal roadways and its application显示文摘Aiming at the surrounding rock control problem of mining and preparation entries in Xingdong mine with large mining depth, and the comprehensive control countermeasures including high pre-stress cable truss system, this study put forward powerful anchor support system and anchor cable adaption technology to surrounding rock deformation. Furthermore, the control measures possess the supporting performance with ‘‘primary rigid-following flexible-new rigid, and primary resistance-following yield-new resistance'', which suits deep roadway surrounding rock control. The mechanical model of truss anchor supporting roof beams was established, and the inverted arch deflection produced by the cable pre-stress with stress increment effect and roof beam deflection were obtained. And then the system working mechanism was illustrated. Finally, the surrounding rock support parameters were determined by means of comprehensive methods, and put into practice. The results show that surrounding rock deformation realized secondary stability after three months. The roadway sides convergence value was less than 245mm, and roof subsidence was less than 124mm. In addition, there was no expansion and renovation during service period. | Xie Shengrong Li Erpeng Li Shijun Wang Jinguang He Chongchong Yang Yafeng | 2015 | International Journal of Mining Science and Technology2015，25，3： | 10 |
| 2 | Challenges and recent progress in thermal management with heat pipes for lithium-ion power batteries in electric vehicles显示文摘Electric vehicles(EVs)are globally undergoing rapid developments,and have great potentials to replace the traditional vehicles based on fossil fuels.Power-type lithium-ion batteries(LIBs)have been widely used for EVs,owing to high power densities,good charge/discharge stability,and long cycle life.The driving ranges and acceleration performances are gaining increasing concerns from customers,which depend highly on the power level of LIBs.With the increase in power outputs,rising heat generation significantly affects the battery performances,and in particular operation safety.Meanwhile,the cold-start performance is still an intractable problem under extreme conditions.These challenges put forward higher requirements for a dedicated battery thermal management system(BTMS).Compared to traditional BTMSs in EVs,the heat pipe-based BTMS has great application prospects owing to its compact structure,flexibility,low cost,and especially high thermal conductivity.Encompassing this topic,this review first introduces heat generation phenomena and temperature characteristics of LIBs.Multiple abuse conditions and thermal runaway issues are described afterward.Typical cooling and preheating methods for designing a BTMS are also discussed.More emphasis on this review is put on the use of various heat pipes for BTMSs to enhance the thermal performances of LIBs.For lack of wide application in actual EVs,more efforts should be made to extend the use of heat pipes for constructing an energy-efficient,cost-effective,and reliable BTMS to improve the performances and safety of EVs. | HUANG Yao TANG Yong YUAN Wei FANG GuoYun YANG Yang ZHANG XiaoQing WU YaoPeng YUAN YuHang WANG Chun LI JinGuang | 2021 | Science China(Technological Sciences)2021，64，5： | 10 |
| 3 | Single-step-lag OOSM algorithm based on unscented transformation显示文摘Aiming at the out-of-sequence measurement (OOSM) problem, the update equations of the nonlinear single-step-lag OOSM are derived based on the existing methods. By introducing the unscented transformation (UT), the covariance between state vector and corresponding measurement vector are computed such that the single-step-lag OOSM can be effectively solved under the nonlinear Gaussian system with nonlinear measurement equation and linear dynamic equation. Furthermore, a single-step-lag OOSM fusion algorithm based on UT is presented to confront the problem of the single-step-lag OOSM in multi-sensor system. The proposed algorithm has some advantages over the EKF A1 based on the extended Kalman filter frame and the optimal method without lags. For example, it can be used when the Jacobian matrix or the Hessian matrix of nonlinear measurement equation is nonexistent; its filtering performance is better; and its complexity has the same order of magnitude as that of the EKF A1 algorithm. | CHEN JinGuang LI Jie GAO XinBo | 2011 | Science China(Information Sciences)2011，54，3： | 6 |
| 4 | RING finger protein RGLG1 and RGLG2 negatively modulate MAPKKK18 mediated drought stress tolerance in Arabidopsis显示文摘Mitogen activated protein kinase kinase kinase 18(MAPKKK18)mediated signaling cascade plays important roles in Arabidopsis drought stress tolerance.However,the post-translational modulation patterns of MAPKKK18 are not characterized.In this study,we found that the protein level of MAPKKK18 was tightly controlled by the 26 S proteasome.Ubiquitin ligases RGLG1 and RGLG2 ubiquitinated MAPKKK18 at lysine residue K32 and K154,and promoted its degradation.Deletion of RGLG1 and RGLG2 stabilized MAPKKK18 and further enhanced the drought stress tolerance of MAPKKK18-overexpression plants.Our data demonstrate that RGLG1 and RGLG2 negatively regulate MAPKKK18-mediated drought stress tolerance in Arabidopsis. | Jiayi Yu Lu Kang Yuanyuan Li Changai Wu Chengchao Zheng Pei Liu Jinguang Huang | 2021 | Journal of Integrative Plant Biology2021，63，3： | 4 |
| 5 | Crystalline behaviors and phase transition during the manufacture of fine denier PA6 fibers显示文摘Recently we have successfully produced fine denier PA6 fibers by using additives containing lanthanide compounds.Meanwhile,crystallization and phase transition of PA6 fibers during spinning and drawing processes were investigated.During the spinning process,β phase crystal could be obtained in as-spun PA6 fibers which were produced with relatively high melt draw ratio,while γ phase crystal predominated when the melt draw ratio was relatively low.β phase crystal,whose behaviors are similar with those of γ phase by FT-IR and XRD characterization,could be transformed to α form easily when PA6 fibers are immersed in boiling water.However,γ phase crystal of PA6 remains unchanged in boiling water.Thus,β and γ phase crystals of PA6 can be differentiated by the crystalline behaviors of PA6 fibers after treatment in boiling water.Further experiments demonstrate that the β phase can also be produced during a drawing process where a phase transformation from γ to α occurs.In other words,β phase may act as an intermediate state during the phase transformation. | ZHANG ChengFeng LIU YuHai LIU ShaoXuan LI HuiZhen HUANG Kun PAN QingHua HUA XiaoHui HAO ChaoWei MA QingFang LV ChangYou LI WeiHong YANG ZhanLan ZHAO Ying WANG DuJin LAI GuoQiao JIANG JianXiong XU YiZhuang WU JinGuang | 2009 | Science China Chemistry2009，52，11： | 4 |
| 6 | 水热亚硫酸预处理菊芋秸秆的高浓底物酶水解试验显示文摘为了有效改善菊芋秸秆用于乙醇转化过程中的酶水解糖化性能,对经水热H2SO3预处理的秸秆进行高浓底物酶水解试验,研究了适合的预处理条件及其底物质量分数提高潜力以及酶使用量缩减潜力。结果显示:在180℃条件下,添加2.0%的H2SO3进行水热预处理后的菊芋秸秆,其组分中的半纤维素可被完全去除。并且在底物质量分数为2.0%、纤维素酶和纤维二糖酶使用量分别为20FPU/g和40CBU/g条件下,获得90.0%的最大酶水解率。在此条件下预处理后的菊芋秸秆,酶水解的底物质量分数可提高的潜力为12%。在此底物质量分数下进行酶水解,纤维素酶使用量可缩减为15FPU/g,纤维二糖酶使用量可缩减至20CBU/g。在此酶使用量条件下,虽然纤维素酶和纤维二糖酶分别减少了25%和50%,酶水解率仍可达88.3%。相比最大水解率,仅降低1.8%。 | 沈飞 王卿 李阳 李秀金 Hu Jinguang | 2014 | 农业机械学报2014，45，3： | 4 |
| 7 | Distinguishing malignant from normal stomach tissues and its in vivo, in situ measurement in operating process using FTIR Fiber-Optic techniques显示文摘Gastric tissue samples were studied using mid-IR fiber-optic attenuated total reflectance (ATR) spectroscopy. FTIR spectra of 90 tissue samples from 48 patients, including 32 normal and 58 malignant tissue samples, were chosen as examples. Malignancy was usually characterized by the absence of CH and C=O bands, a weak amide II band near 1545 cm-1, a shift of the amide I band to lower wave number, a decrease in the ~1450 cm-1 peak to less than the~1400 cm-1 peak. Subtraction spectra indicate that the amide I and amide II bands of normal and malignant tissues have larger differences in peak positions and relative intensities. The statistical analysis results confirm this conclusion. The results indicate that FTIR fiber optic techniques provide important information about cancerous tissue of the stomach, which can be used to differentiate the malignant tissue from the normal tissue. Based on the above results we successfully realize the detection of the tumor tissues of digestive tract in vivo and in situ. And the results of detection cancer near operating room and in vivo and in situ in the operating room are consistent with the conclusions for the samples stored in liquid N2, which is the basis for the clinical application. | XU Yizhuang1, YANG Limin1, XU Zhi3, ZHAO Ying2, LING Xiaofeng3, LI Qingbo1, WANG Jiansheng4, ZHANG Nengwei3, ZHANG Yuanfu1 & WU Jinguang1 1. The State Key Laboratory of Rare Earth Materials and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China 2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 3. Department of Surgery, Third Hospital, Peking University, Beijing 100083, China 4. Department of Oncology Surgery, the First Hospital of Xi’an Jiaotong University, Xi’an 710061, China Correspondence should be addressed to Wu Jinguang (email: wujg@pku.edu.cn) | 2005 | Science China Chemistry2005，48，2： | 4 |
| 8 | TiO_2 mesocrystals: Synthesis, formation mechanisms and applications显示文摘Mesocrystals, which are assemblies of crystallographically oriented nanocrystals, have received increasing attention due to their unique properties such as high crystallinity, high porosity, oriented subunit alignment, and similarity to highly sophisticated biominerals. However, the controlled synthesis of TiO 2 mesocrystals has not been realized until recently, probably because of the difficulty in accurately controlling the reaction processes that produce TiO 2 crystals. In this review, recent advances in the synthesis and applications of TiO 2 mesocrystals are summarized with particular attention paid to the mechanisms of their formation. Three typical pathways for the preparation of TiO 2 mesocrystals are discussed, namely topotactic transformation, direct synthesis in solution, and growth on supports. The potential applications of TiO 2 mesocrystals in lithium ion batteries, photocatalysis, enzyme immobilization, and antireflection materials are also described. | CAI JinGuang QI LiMin | 2012 | Science China Chemistry2012，55，11： | 3 |
| 9 | Numerical Analysis of Labyrinth Seal Performance for the Impeller Backface Cavity of a Supercritical CO_(2) Radial Inflow Turbine显示文摘For a radial inflow turbine(RIT),leakage flow in impeller backface cavity has critical impacts on aerodynamic performance of the RIT and axial force acting on the RIT impeller.In order to control this leakage flow,different types of labyrinth seals are numerically studied in this paper based on a supercritical carbon dioxide(S-CO_(2))RIT.The effects of seal clearance and cavity outlet pressure are first analyzed,and the impacts of seal design parameters,including height,number and shape of seal teeth,are evaluated.Results indicate that adding labyrinth seal can improve cavity pressure and hence adequately inhibits leakage flow.Decreasing the seal clearance and increasing the height of seal teeth are beneficial to improve sealing performance,and the same effect can be obtained by increasing the number of seal teeth.Meanwhile,employing seals can reduce leakage loss and improve RIT efficiency under a specific range of cavity outlet pressure.Finally,the influences of seal types on the flow field in seal cavity are numerically analyzed,and results demonstrate that isosceles trapezoidal type of seal cavity has better sealing performance than triangular,rectangular and right-angled trapezoidal seal cavities. | Jinguang Yang Feng Zhao Min Zhang Yan Liu Xiaofang Wang | 2021 | Computer Modeling in Engineering & Sciences2021，，3： | 3 |
| 10 | Creep-Induced Phase Instability and Microstructure Evolution of a Nearly Lamellar Ti–45Al–8.5Nb–(W, B, Y) Alloy显示文摘Microstructure degradation and stress-induced transformation of a high Nb-containing TiAl alloy with nearly lamellar microstructure during creep were investigated.Tensile creep experiments were performed at 800,850 and 900℃ under 150 MPa in air.Microstructures before and after creep tests were examined using scanning and transmission electron microscopy(SEM and TEM).Dislocations within the lamellar structure andβo(ω)region and twin intersection in massiveγgrains were investigated.Dislocation sliding played a critical role in the deformation ofωo phase,which preferentially occurred on the(0002)ωo plane.Possible deformation mechanisms were revealed.A stress-inducedγ→α2 phase transformation took place during the creep test at 850 and 900℃.α2 lamella could directly decompose into theωo phase at 850℃.The instability of high-temperature microstructure can weaken the creep resistance and promote the plastic deformation of the lamellar matrix,thus could be detrimental to the creep properties.The correlations between creep properties and microstructure instability were discussed. | Xuyang Wang Jieren Yang Rui Hu Zitong Gao Jinguang Li Hengzhi Fu | 2020 | Acta Metallurgica Sinica(English Letters)2020，33，12： | 3 |
| 11 | Investigation on One-Dimensional Loss Models for Predicting Performance of Multistage Centrifugal Compressors in Supercritical CO Brayton Cycle显示文摘The main compressor in a supercritical carbon dioxide(SCO2)Brayton cycle works near the critical point where the physical properties of CO_(2)are far away from the ideal gas.To investigate the effectiveness of the conventional one-dimensional(1D)loss models for predicting the performance of compressors working in such nontraditional conditions,detailed comparisons of 1D predicted performance,experimental data and threedimensional CFD results are made.A 1D analysis method with enthalpy and total pressure based loss system is developed for multistage SCO2 centrifugal compressors,and it is firstly validated against the experimental results of a single stage SCO2 centrifugal compressor from the Sandia National Laboratory.A good agreement of pressure ratios with experiments can be achieved by the 1D method.But the efficiency deviations reveal the potential deficiencies of the parasitic loss models.On the basis of the validation,a two-stage SCO2 centrifugal compressor is employed to do the evaluation.Three-dimensional CFD simulations are performed.Detailed comparisons are made between the CFD and the 1D results at different stations located in the compressor.The features of the deviations are analyzed in detail,as well as the reasons that might cause these deviations. | SHAO Wenyang DU Juan YANG Jinguang WANG Xiaofang LYU Guochuan | 2021 | Journal of Thermal Science2021，30，1： | 2 |
| 12 | Involvement of NADPH oxidase NtrbohD in the rapid production of H2O2 induced by ABA in cultured tobacco cell line BY-2显示文摘The mechanisms for the production of hydrogen peroxide (H2O2) induced by abscisic acid (ABA) were investigated in suspension culture cells of tobacco BY-2 cells. The results showed that the immediate generation of H2O2, which was mainly derived from super- oxide dismutase-catalyzed dismutation of superoxide radical, was significantly induced by ABA. Furthermore, treatment of the cultured tobacco cells with ABA resulted in a time-dependent quick increase in plasma membrane (PM) NADPH oxidase activity, which coin- cided on time and magnitude with the elevation in ABA-induced accumulation of H2O2. Moreover, these enhanced effects were pro- nouncedly inhibited by two NADPH oxidase inhibitors, diphenylene iodonium and imidazole, suggesting that PM NADPH oxidase is involved in the rapid accumulation of H2O2 in cultured tobacco cells. In addition, analysis of the expression level of NtrbohD, a PM NADPH oxidase gene in tobacco, by RT-PCR and protein gel blot revealed that the gene at both mRNA and protein levels was upregulated by ABA, indicating that NtrbohD participates in the ABA-stimulated rapid production of H2O2 in tobacco culture cells. Taken together, these findings suggest that ABA induces the rapid accumulation of reactive oxygen species via NADPH oxidase in sus-pension culture cells of tobacco, and that NADPH oxidase and H2O2 appear to be important components in ABA signal transduction pathway in plants. | Fushun Hao Jinguang Zhang Zhonglian Yu Jia Chen | 2008 | Progress in Natural Science:Materials International2008，18，3： | 2 |
| 13 | Review on aggregation of acid extractants in solvent extraction of metal ions:remark on the general model显示文摘The aggregation behavior of various acid extractants in the solvent extraction systems of metal ions is re-examined and explained according to knowledge obtained in recent work. The conclusions are as follows. (1) Complexes formed by the extractants and metal ions can form reversed micelles in organic diluents, depending on the microstructures of the complexes. The dimers of the acid extractant cannot percolate to the metal-extractant aggregates, and the acid-salt complexes are always formed in the aggregates. The reversed micelles or the W/O microemulsions formed by different species cannot be associated with each other to form a unified aggregate. (2) In solvent extraction systems, hydration of the extractants and metal ions can be considered as the driving force of forming reversed micelles. (3) Information of the first approach to the insight of the bicontinuous microemulsion of NaDEHP shows that various components in the aqueous phase behave confined and very similar to the typical AOT/n-heptane W/O microemulsions. (4) In the extraction of lanthanide ions by the W/O microemulsion of sodium naphthenate, the saponification is a process of forming reversed micelle or W/O microemulsion, while the extraction step is a process of destroying reversed micelles or W/O microemulsion droplets. | ZHOU Naifu and WU Jinguang(Department of Chemistry, Peking University, Beijing 100871, China Charles S. Roberts Laboratory, Gilmer Tumham Building, Auburn 36830, USA) | 2003 | Progress in Natural Science:Materials International2003，13，1： | 2 |
| 14 | Regulation of the stability and ABA import activity of NRT1.2/NPF4.6 by CEPR2-mediated phosphorylation in Arabidopsis显示文摘Abscisic acid(ABA)transport plays an important role in systemic plant responses to environmental factors.However,it remains largely unclear about the precise regulation of ABA transporters in plants.In this study,we show that the C-terminally encoded peptide receptor 2(CEPR2)directly interacts with the ABA transporter NRT1.2/NPF4.6.Genetic and phenotypic analyses revealed that NRT1.2/NPF4.6 positively regulates ABA response and that NRT1.2/NPF4.6 is epistatically and negatively regulated by CEPR2.Further biochemical assays demonstrated that CEPR2 phosphorylates NRT1.2/NPF4.6 at serine 292 to promote its degradation under normal conditions.However,ABA treatment and non-phosphorylation at serine 292 prevented the degradation of NRT1.2/NPF4.6,indicating that ABA inhibits the phosphorylation of this residue.Transport assays in yeast and Xenopus oocytes revealed that non-phosphorylated NRT1.2/NPF4.6 had high levels of ABA import activity,whereas phosphorylated NRT1.2/NPF4.6 did not import ABA.Analyses of complemented nrt1.2 mutants that mimicked non-phosphorylated and phosphorylated NRT1.2/NPF4.6 confirmed that non-phosphorylated NRT1.2S292A had high stability and ABA import activity in planta.Additional experiments showed that NRT1.2/NPF4.6 was degraded via the 26S proteasome and vacuolar degradation pathways.Furthermore,we found that three E2 ubiquitin-conjugating enzymes,UBC32,UBC33,and UBC34,interact with NRT1.2/NPF4.6 in the endoplasmic reticulum and mediate its ubiquitination.NRT1.2/NPF4.6 is epistatically and negatively regulated by UBC32,UBC33,and UBC34 inplanta.Taken together,these results suggest that the stability and ABA import activity of NRT1.2/NPF4.6 are precisely regulated by its phosphorylation and degradation in response to environmental stress. | Lei Zhang Zipeng Yu Yang Xu Miao Yu Yue Ren Shizhong Zhang Guodong Yang Jinguang Huang Kang Yan Chengchao Zheng Changai Wu | 2021 | Molecular Plant2021，14，4： | 2 |
| 15 | An Improved ZigBee rou- ting strategy for monitoring system显示文摘 | Xiaohui Li Kangling Fang Jinguang Gu | 2008 | Intelligent Networks and In- telligent Systems2008，19，6： | 1 |
| 16 | Multiple Ontologies Fu sion Mechanism Based on Complex Semantic Mapping in Mediator显示文摘 | Gu Jinguang Huang Yi Zhou Yi | 2006 | Journal of Wuhan University2006，52，1： | 1 |
| 17 | Regulation of the stability and ABA import activity of NRT1.2/NPF4.6 by CEPR2-mediated phosphorylation in Arabidopsis显示文摘(Molecular Plant 14,633–646;April 52021)In Figure 1D in our original manuscript,we demonstrated by the mating-based split ubiquitin system(MbSUS)assay that the functional domains of CEPR2 interact with the loop region of NRT1.2/NPF4.6(NRT1.2loop,aa 232-346).However,the sub-image of-WLU in Figure 1D was mistakenly assembled. | Lei Zhang Zipeng Yu Yang Xu Miao Yu Yue Ren Shizhong Zhang Guodong Yang Jinguang Huang Kang Yan Chengchao Zheng Changai Wu | 2022 | Molecular Plant2022，15，10： | 1 |
| 18 | Preparation of Mn substituted La-hexaaluminate catalysts by using supercritical drying显示文摘 | Wang Junwei Tian Zhijian Xu Jinguang | 2003 | Catalysis Today2003，83，： | 1 |
| 19 | Anchorage strength models for FRP and steel plates bonded to concrete显示文摘 | Chen Jianfei Teng Jinguang | 2001 | Journal of Structural Engineering2001，127，7： | 1 |
| 20 | Water solubization capacity and conductance behaviors of AOT and NaDEHP system in the presence of additives显示文摘 | Quan Li Tao Li Jinguang Wu | 2002 | Colloids and Surfaces A: Physicochemical and Engineering Aspects2002，197，1： | 1 |
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